Rtd 4-20mA PT100 Temperature Transmitter
BT-35 intelligent temperature transmitter is a kind of suitable RTD and TC two types of temperature two line intelligent temperature module. It supports to input 8 kinds of conventional thermocouple sensor signal and PT 100 temperature signal, measuring range can be set, and the temperature acquisition signal linear processing, output and the temperature corresponding to 4 ~ 20mA signal. This module is generally installed in the head junction box of the transmitter. The transmitter design is compact, the line adopts low power consumption design, and all the components of low temperature drift are used to reduce the circuit heating and the influence of ambient temperature on the transmitter. Enhanced anti-interference design, so that it can work in a long-term stability in the industrial grade environment of-40~80ºC. The unique cold end temperature is compensated digitally with a temperature range of-40-80 degrees.
Our Advantages
- Intelligent two-line system 4~20mA working mode, better anti-interference ability, signal without damage far
- Provide high precision cooling part compensation, based on the industrial grade-40-80ºC cooling part temperature supplement range.
- Full digital calibration, no moving potentiometer, temperature drift lower to <25ppm.
- Enhanced EMC anti-interference design, hardware watchdog, suitable for all kinds of electromagnetic environment harsh industrial environment.
- Pure digital thermocouple calibration calculation, the precision is higher, using the international temperature standard ITS-90 calculation standard.
- Intelligent USB / calibration interface, micro USB socket, professional calibration configuration software, calibration is easy to use.
- Professional transmitter calibration software, software with user version and factory version and mobile phone APP.
Product Parameters
Enter |
input signal |
Thermal resistance (RTD), thermocouple (TC) |
Cold junction compensation range |
-20~80ºC |
Compensation accuracy |
±1ºC |
Output |
output signal |
4~20mA |
Load Resistance |
RL≤(Ue-12)/0.021 |
Upper and Lower limit overflow alarm output current |
IH=21mA,IL=3.8mA |
Power supply |
Supply voltage |
DC12~40V |
Other parameters |
Temperature drift |
0.02%FS/ºC |
Response time |
1s reaches 90% of final value |
Working temperature |
-40~80ºC |
Stored temperature |
-40~100ºC |
Shock resistance |
4g/2~150Hz |
installation angle |
Unlimited |
Installation area |
b-type top box mounting |
Electromagnetic |
Meet the requirements of gb / t18268 industrial equipment |
- Input type and transmission accuracy
Model |
Types |
Measuring |
Minimum |
Measuring |
Conversion |
RTD |
Pt100 |
-200.0~850.0ºC |
10ºC |
≤100ºC |
0.2% |
>100ºC |
0.1% |
Cu50 |
-50.0~150.0ºC |
10ºC |
≤100ºC |
0.2% |
>100ºC |
0.1% |
TC |
B |
400~1800ºC |
500ºC |
≤300ºC |
0.2% |
>300ºC |
0.1% |
E |
-100~1000ºC |
50ºC |
≤300ºC |
0.2% |
>300ºC |
0.1% |
J |
-100~1200ºC |
50ºC |
≤300ºC |
0.2% |
>300ºC |
0.1% |
K |
-180~1372ºC |
50ºC |
≤300ºC |
0.2% |
>300ºC |
0.1% |
N |
-180~1300ºC |
50ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
R |
-50~1768ºC |
500ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
S |
-50~1768ºC |
500ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
T |
-200~400ºC |
50ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
Wre3-25 |
0~2315ºC |
500ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
Wre5-26 |
0~2310ºC |
500ºC |
≤500ºC |
0.2% |
>500ºC |
0.1% |
Note:
1. The above accuracy data is obtained by testing under the environment temperature of 20 ºC
± 2 ºC.
2. The output accuracy "%" is relative to the set range.
3.The cold junction compensation error needs to be added when measuring the thermocouple.
Dimensions:
Description of the wiring function
Function declaration:
- 24V + and 24V-two wire wiring for the transmitter
Provide DC 24V, power supply, output 4~20mA current signal
- Sensor wiring terminals
3 +: signal input +
2-: signal input-
4:GND
Software Details
Interface of PC Software
Interface of APP for phone calibration
The debugging interface is the micro USB interface, which integrates the power supply and communication lines internally to fully calibrate and set any parameters of the transmitter. The debugging tool for BT-3X uses a single USB interface, built-in high-voltage power supply, directly inserted into the computer USB, without external DC24V power supply to the transmitter.
The interface line supports the transmission range modification and temperature shift, which may have a certain impact on the output current. The output current of the removed USB line will return to normal.